diff --git a/pom.xml b/pom.xml
index 50acf19..a7a5640 100644
--- a/pom.xml
+++ b/pom.xml
@@ -106,6 +106,7 @@
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-configuration-processor</artifactId>
+			<optional>true</optional>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.solr</groupId>
diff --git a/src/main/java/eu/openaire/api/controllers/ScholixController.java b/src/main/java/eu/openaire/api/controllers/ScholixController.java
index cc03a73..92641a9 100644
--- a/src/main/java/eu/openaire/api/controllers/ScholixController.java
+++ b/src/main/java/eu/openaire/api/controllers/ScholixController.java
@@ -1,8 +1,6 @@
 package eu.openaire.api.controllers;
 
-import eu.dnetlib.dhp.oa.model.graph.Datasource;
 import eu.dnetlib.dhp.schema.sx.api.model.v2.PageResultType;
-import eu.openaire.api.dto.request.validators.AllowableFieldsValidator;
 import eu.openaire.api.dto.request.validators.PaginationValidator;
 import eu.openaire.api.errors.ErrorResponse;
 import eu.openaire.api.services.ScholixService;
@@ -17,43 +15,37 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.WebDataBinder;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.InitBinder;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
-@RequestMapping("/relations")
 @RequiredArgsConstructor
-@Tag(name = "Scholix Relations", description = "API endpoints to explore scholix relations")
+@Tag(name = "Scholix Relations", description = "API endpoints to explore scholix")
 public class ScholixController {
 	private final ScholixService scholixService;
-
-	// common validator to check api allowable fields
-	private final AllowableFieldsValidator allowableFieldsValidator;
-
-	// common validator to check pagination parameters
 	private final PaginationValidator paginationValidator;
 
 	@InitBinder
 	protected void initBinder(WebDataBinder binder) {
-		binder.addValidators(allowableFieldsValidator, paginationValidator);
+		binder.addValidators(paginationValidator);
 	}
 
 	@Operation(
-			summary = "Retrieve scholix links by sourcePid and sourceType",
-			description = "Retrieve scholix links by sourcePid and sourceType"
-	)
+			summary = "Retrieve scholix links by openaire id",
+			description = "Retrieve scholix links by openaire id")
 	@ApiResponses({
-			@ApiResponse(responseCode = "200", content = { @Content(schema = @Schema(implementation = Datasource.class), mediaType = "application/json") }),
+			@ApiResponse(responseCode = "200", content = { @Content(schema = @Schema(implementation = PageResultType.class), mediaType = "application/json") }),
 			@ApiResponse(responseCode = "404", content = { @Content(schema = @Schema(implementation = ErrorResponse.class), mediaType = "application/json") }),
 			@ApiResponse(responseCode = "500", content = { @Content(schema = @Schema(implementation = ErrorResponse.class), mediaType = "application/json") })
 	})
-	@GetMapping
-	public PageResultType getRelationships(@RequestParam @Parameter(description = "The OpenAIRE ID") String sourcePid,
-										   @RequestParam(required = false) @Parameter(description = "The Source Type") String sourceType,
-										   @RequestParam(required = true, defaultValue = "0")
-										   @Parameter(description = "Page number of the results") int page) {
+	@GetMapping("links")
+	public PageResultType getLinks(
+			@RequestParam
+			@Parameter(description = "The OpenAIRE ID") String openaireId,
 
-		return scholixService.getLinks(sourcePid, sourceType, page);
+			@RequestParam(defaultValue = "0")
+			@Parameter(description = "Page number of the results") int page) {
+
+		return scholixService.getLinks(openaireId, page);
 	}
 }
diff --git a/src/main/java/eu/openaire/api/errors/ServiceExceptionHandler.java b/src/main/java/eu/openaire/api/errors/ServiceExceptionHandler.java
index 97e4ade..3616da5 100644
--- a/src/main/java/eu/openaire/api/errors/ServiceExceptionHandler.java
+++ b/src/main/java/eu/openaire/api/errors/ServiceExceptionHandler.java
@@ -5,12 +5,10 @@ import eu.openaire.api.errors.exceptions.NotFoundException;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.HttpStatusCode;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
-import org.springframework.web.client.RestClientResponseException;
 import org.springframework.web.context.request.ServletWebRequest;
 import org.springframework.web.context.request.WebRequest;
 import org.springframework.web.servlet.resource.NoResourceFoundException;
@@ -62,22 +60,6 @@ public class ServiceExceptionHandler {
 		return this.handleException(e.getMessage(), request, HttpStatus.INTERNAL_SERVER_ERROR);
 	}
 
-	@ExceptionHandler(RestClientResponseException.class)
-	public ResponseEntity<ErrorResponse> handleRestClientResponseException(RestClientResponseException e, WebRequest request) {
-		HttpStatusCode status = e.getStatusCode();
-		String path = ((ServletWebRequest) request).getRequest().getRequestURI();
-
-		ErrorResponse response = ErrorResponse.builder()
-				.message(e.getMessage())
-				.error(status.toString())
-				.code(status.value())
-				.timestamp(new Date())
-				.path(path)
-				.build();
-
-		return ResponseEntity.status(status.value()).body(response);
-	}
-
 	private ResponseEntity<ErrorResponse> handleException(String message, WebRequest request, HttpStatus httpStatus) {
 		var req = ((ServletWebRequest)request).getRequest();
 		String path = String.format("%s?%s", req.getRequestURI(), req.getQueryString());
diff --git a/src/main/java/eu/openaire/api/services/ScholixService.java b/src/main/java/eu/openaire/api/services/ScholixService.java
index 14da114..186e467 100644
--- a/src/main/java/eu/openaire/api/services/ScholixService.java
+++ b/src/main/java/eu/openaire/api/services/ScholixService.java
@@ -14,24 +14,26 @@ public class ScholixService {
 
 	private final RestClient restClient;
 	private final Logger log = LogManager.getLogger(this.getClass());
+	private static final String V2_OPENAIRE_LINKS_PATH = "v2/OpenAIRELinks";
+	private static final String OPENAIRE_ID_PREFIX = "50|";
 
 	@Timed
-	public PageResultType getLinks(String sourcePid, String sourceType, int page) {
+	public PageResultType getLinks(String sourcePid, int page) {
 		try {
-			PageResultType pageResultType = new PageResultType();
+			PageResultType pageResultType;
 
 			pageResultType = restClient.get()
 					.uri(uriBuilder -> uriBuilder
-							.path("/v2/Links") //v2/OpenAIRELinks
-							.queryParam("sourcePid", sourcePid)
-							.queryParam("sourceType", sourceType)
+							.path(V2_OPENAIRE_LINKS_PATH)
+							.queryParam("sourcePid", OPENAIRE_ID_PREFIX + sourcePid)
 							.queryParam("page", page)
 							.build())
 					.retrieve()
 					.body(PageResultType.class);
 			return pageResultType;
 		} catch (Exception e) {
-			throw new RuntimeException("Unexpected error: " + e.getMessage(), e);
+			log.error(e.getMessage());
+			throw new RuntimeException(e.getMessage());
 		}
 	}
 }